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CNG tank explodes while owner fills up

A driver in Iran recently had a scare when his car exploded at a filling station. Details are scarce surrounding the video below, but from what we can discern, the driver of the white Iran Khodo Samand backed into the station and the attendant began filling his tank. When the driver and popped the trunk for a look inside, the vehicle exploded, knocking him to the ground. From the looks of things, neither the driver, the attendant nor the two individuals standing on the other side of the island were injured in the incident.

It's unclear what exactly caused the car to erupt, though there's some indication the accident could have been initiated by a faulty compressed natural gas tank. Take a look at the video below for yourself to see if you can figure out exactly what happened.

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It looks like a possible tank rupture, releasing all the compressed gas at once, but without igniting.
So you get a burst, but no where near as bad as if it had actually ignited. Which is why no one was seriously injured.

That should be a lesson to other terrorists to be more careful with your IEDs.
This is becoming such a problem, they really need to have jihaad safety orientations in the middle-east, where safety is not just a priority, its policy.

I remember reading one story about an Car bomb exploding too early because the timer was set for daylight savings when it wasn't actually DST.. So they're just driving along.. And the bomb went off as scheduled.. On the wrong clock.. In the wise words of jamie hyneman- "buh-bye!"

Your theory seems correct... A small fireball was already there when he opened the trunk.. So he probably sparked something.. Once the flame hit the air/vapors the whole thing ignited and knocked him on his ass. Had a similar thing happen to me with an old barbecue grill that wasnt lighting the normal way.. So me being an 18 year old idiot at the time came back to it with one of those candle lighters.. I had shut the valves but didnt release enough of the vapors..?Tiny little lighter ignited the vapors and next thing i know the fire ball is in my face.. I didnt get hurt but Lost a good portion of an eyebrow and all the hair on my left forearm for that one.. You got enough vapors in the air and it hits an open flame even caused by the tiniest spark youre gonna have a problem real quick

FWIW, Mythbusters did an episode on the cell phone myth, and their conclusion (and what the experts they talked to said) was that static electricity is what you have to watch out for. Most notably that includes getting back in your vehicle while it's filling, which is probably where the cell phone myth comes from. People get in their car and start talking on the phone, then get out and grab the pump handle, static electricity causes a spark, which ignites the vapors and causes the fire. Nothing to do with the cell phone, but people being what they are (mostly ignorant of science), they immediately assume it's the cell phone because of scary radiation or something.

he was luky that the gas did not ignite: that is just the tank that exploded due some kind of leakage: CNG is held atmospheres in those tanks. if it did ignite not even the surveillance camera would have survived.